From: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
To: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
agross@kernel.org, bjorn.andersson@linaro.org,
lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org,
plai@codeaurora.org, bgoswami@codeaurora.org, perex@perex.cz,
tiwai@suse.com, srinivas.kandagatla@linaro.org,
rohitkr@codeaurora.org, linux-arm-msm@vger.kernel.org,
alsa-devel@alsa-project.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, swboyd@chromium.org,
judyhsiao@chromium.org
Cc: Venkata Prasad Potturu <potturu@codeaurora.org>
Subject: Re: [PATCH] ASoC: qcom: soundwire: Enable soundwire bus clock for version 1.6
Date: Tue, 5 Oct 2021 20:43:11 +0530 [thread overview]
Message-ID: <f7fbf5e2-2f09-1df5-475a-cfe04f33059a@codeaurora.org> (raw)
In-Reply-To: <d485af5f-4dfb-df08-9a22-901b7534ca3b@linux.intel.com>
On 10/5/2021 8:33 PM, Pierre-Louis Bossart wrote:
> Thanks for Your time Bossart!!!
>
>>>> + ctrl->swrm_hctl_reg = devm_ioremap(&pdev->dev,
>>>> swrm_hctl_reg, 0x4);
>>> if (!ctrl->swrm_hctl_reg)
>>> return -ENODEV;
>>>
>>> ?
>> I think here error check is not required, as this change is required
>> only for soundwire version 1.6 and above.
> My comment had nothing to do with versions, it's just that ioremap can
> fail and in general it's wise to test for errors...
Okay. My intention is if offset (swrm_hctl_reg) is zero, devm_ioremap
may return error.
In that case we need to ignore error.
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
next prev parent reply other threads:[~2021-10-05 15:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-01 16:24 [PATCH] ASoC: qcom: soundwire: Enable soundwire bus clock for version 1.6 Srinivasa Rao Mandadapu
2021-10-01 16:24 ` Srinivasa Rao Mandadapu
2021-10-01 17:57 ` Pierre-Louis Bossart
2021-10-05 14:13 ` Srinivasa Rao Mandadapu
2021-10-05 15:03 ` Pierre-Louis Bossart
2021-10-05 15:13 ` Srinivasa Rao Mandadapu [this message]
2021-10-05 17:01 ` Bjorn Andersson
2021-10-05 17:01 ` Bjorn Andersson
2021-10-08 5:30 ` Srinivasa Rao Mandadapu
2021-10-08 5:30 ` Srinivasa Rao Mandadapu
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